package com.tron.dobest.java.trondesign.observer;

public class ObserverStart {
    public static void main(String[] args) {
        TronSubject tronSubject = new TronSubject();
        TronObject tronObject = new TronObject(tronSubject);
        TronObject tronOtherObject = new TronObject(tronSubject);
        tronSubject.change("你好","世界");
    }
}
